John Deere 2555 ac .troble

[Lutherj]

I have ac.pressure question My John Deere 2555 suction pressure is running at 10 psig High pressure is 330
Ambient temp. 84 degrees what could cause this problem

 

[Tx Jim]

Plugged expansion valve. Is radiator & condenser squeaky clean?

 

[Lutherj]

Not sure about radiator condenser just replaced expansion valve aftermarket valve could this be the trouble valve will move

 

[Tx Jim]

If you have a new expansion valve installed then how long since receiver/dryer has been changed?

 

[Lutherj]

If you have a new expansion valve installed then how long since receiver/dryer has been changed?

I bought tractor last year with no ac replaced all coils and all hoses and metal lines new. Compressor expansion
Valve changed dryer first new compressor leaked around seal, sec .composser locked up changed dryer every time system opened.And pulled long vacuum on system very frustrating thanks for for help .any input appreciate d.

 

[Partspring]

Typically the lack of airflow over the condenser causes higher than normal pressure.Check the condenser for any obstruction.

 

[jd110]

Some 2555's have viscous fan drive. This could be bad also and not pulling enough air. The condensor slides out to the left side after removing a couple of bolts. Be sure to pressure wash radiator and condensor thoroughly.

 

[Tx Jim]

I forgot about the vicious fan drive as my 4255 has had the JD supplied fan lock kit installed for about 20 yrs.